Two protected experiments were designed to study the effect of organic fertilizer, soil
solarization, and endomycorrhizae on yield and fruit quality of sweet pepper. A split–split plot
design was used with four replicates for each treatment. The organic fertilizer treatments were randomly
distributed among the main plots, soil solarization treatments arranged among the sub plots,
while mycorrhizal treatments were allocated as sub–sub plots.
The combined interaction of organic fertilizer, soil solarization, and endomycorrhizae gave the
highest increase roots infection percentages when compared to other treatments, being 78% and
87% in the first and second seasons in respective order. Organic fertilizer, soil solarization and
mycorrhizal inoculation, either separately or in different interactions resulted in significant increases
in pepper’s early yield, total yield, total number of fruits per plot, and fruit length and diameter. The
combined interaction between organic fertilizer, soil solarization, and VAM gave the highest significant
increase in early and total yields (kg/plot) and total number of fruits/plot being 9.251 and
75.645 kg/plot and 529.3 fruits/plot, respectively.